Silicon analysis

Ebook "Silicone surface science (Advances in Silicon science, Volume 4)" offers a survey of the major topics concerning the properties and behavior of silicone surfaces. It covers all main aspects of the subject, including: polydimethylsiloxane, spread monolayers, self-assembled monolayers, hydrophobicity and super-hydrophobicity, coupling agents, surfactants, fluorosilicones, surface treatments and surface analysis.

399p coduathanh1122 27-03-2024 3 1   Download

In this work, we perform a detailed balance analysis of the maximum conversion efficiency of solar cells made from III-nitride materials. First, we present an analysis of single junction solar cells made from InxGa1
xN alloys, and next we focus on tandem cells made from III-nitride and silicon materials.

3p viberbers 09-08-2023 6 4   Download

The size-dependent behavior of a silicon microbeam with an axial force in MEMS is studied using a nonlinear finite element procedure. Based on a refined thirdorder shear deformation theory and the modified couple stress theory (MCST), nonlinear differential equations of motion for the beam are derived from Hamilton’s principle, and they are transferred to a discretized form using a two-node beam element.

13p viwolverine 11-07-2023 3 2   Download

To achieve the aim, the first objective is preliminary experiments on preparation of polypropylene blends with silicone elastomer masterbatch and characterize by analysis of mass composition, mechanical properties, and dynamic mechanical properties to investigate any improvement of properties. The silicone elastomer masterbatch will then be substituted with propylene-maleic anhydride graft copolymer waxes or other compatibilizers.

147p runthenight05 01-03-2023 4 2   Download

This paper presents a novel design of the microactuator with a double stepped beam structure for large out-of-plane deflection output applied to microvalves. The design and analysis of the out-of-plane microactuator are implemented by the finite element method. Silicon is selected as the material of the actuator and the beam motion is generated by the Joule heating effect.

4p visherylsandber 04-07-2022 9 3   Download

Cellulose acetate (CA) membranes were modified by nano-silicon dioxide (n-SiO2), and they were exposed to ultrasonic waves at a frequency of 35 kHz. The effect of sonication on their water sorption tendency and permeation capability was investigated. The characterization of the membranes was done by FTIR and SEM analysis, and the hydrophilic character of the membranes was deduced by swelling studies and contact angle (CAn) measurements.

9p langthannam 29-12-2021 6 1   Download

The synthesis and characterization of novel tetraalkylthio (SC6H13 or SC12H25) substituted µ-oxo silicon(IV) phthalocyanines (3a and 3b) and their µ-oxo derivatives (4a and 4b) were described in this study. These silicon(IV) phthalocyanines were characterized using different spectroscopic techniques such as UV-Vis, 1H NMR, FTIR, and mass and elemental analysis, as well.

24p tudichquannguyet 29-11-2021 9 1   Download

In this paper, we present simulation and evaluation of sensitivity of electrical and mechanical effects of MEMS based capacitive pressure sensor with rectangle diaphragm using COMSOL Multiphysics. This includes diaphragm deflection, sensitivity and linearity analysis, capacitance and thermal considerations. Capacitance values are plotted under uniform external pressure 10kPa. Selected materials include silicon and carbon, acknowledging that carbon has shown the best and steady result. Simulation results also show how the capacitance and diaphragm deformation varies under increasing pressure.

6p sotritu 18-09-2021 13 1   Download

In this work, the anharmonic extended X-ray absorption fine structure (EXAFS) oscillation of crystalline silicon (c-Si) is presented in terms of the Debye-Waller factor using the cumulant expansion approach up to the fourthorder. The first four EXAFS cumulant has been calculated based on the classical anharmonic correlated Einstein (ACE) model and suitable analysis procedure, in which thermodynamic parameters are derived from the anharmonic effective potential obtained using the first shell near-neighbor contribution approach.

8p trinhthamhodang11 04-05-2021 4 2   Download

Rab proteins are GTPases responsible for intracellular vesicular trafficking regulation. Rab11 proteins, members of the Rab GTPase family, are known to regulate vesicular recycling during embryonic development. In zebrafish, there are 3 rab11 paralogues, known as rab11a, rab11ba and rab11bb, sharing high identity with each other.

8p viwyoming2711 16-12-2020 13 1   Download

An experiment was carried out in Kittur Rani Channamma College of Horticulture, Arabhavi, Belgaum District, Karnataka state to know the response of soil application of diatomaceous earth (DE) as a source of silicon on leaf nutrient status of guava. Leaf sample under different treatment were collected and utilized for analysis of nutrient status. The highest macronutrient viz., Nitrogen (2.13%), Phosphorous (0.32%) and Potassium (0.

6p angicungduoc6 20-07-2020 21 1   Download

The present study was undertaken to collect baseline data on the Physico-chemical parameters from the Baigul reservoir of district - Udham Singh Nagar, Uttarakhand located in the Tarai region of Uttarakhand. The ecology of reservoir plays a vital role in biological productivity. The nutrient status of water and soil plays the most significant role in governing the production of planktonic organisms.

17p angicungduoc5 14-06-2020 16 0   Download

In present work hybrid composite laminated plate is prepared by mixing Silicon Carbide (SiC) and Graphene powder in glass fiber reinforced composite plates. The hand lay-up process has been adopted for preparing the composite plates. The antisymmetric cross ply (00 /900 /00 /900 ) composite laminated plates are considered for analysis. The hardness and Impact test on hybrid composite laminated plate is to be carried out on Brinell’s Hardness test and Charpy V - Notch Test.

9p cleopatrahuynh 01-06-2020 11 0   Download

This paper investigates the effect of defects on the electrical properties of monocrystalline silicon solar cells (mono-Si/m-Si). It characterises work function in terms of surface potential (SP) using scanning probe microscopy (SPM), and Kelvin probe force microscopy (KPFM) in force modulation mode, as opposed to the usual amplitude modulation mode.

11p cleopatrahuynh 01-06-2020 32 0   Download

he amorphous core dry-type cast-resin transformer is a type of energy- saving transformer, which the no-load losses in the amorphous metal is generally lower from 60% to 70 % than regular electrical steel (silicon steel). In this paper, the iron core and winding thermal of the dry-type transformer are simulated/analysed via a finite element method. The analysis of temperature distribution characteristics of iron core and winding in transformers is a quite important problem for researchers to show the hot-spot and the temperature rise highest point.

8p covid19 03-03-2020 37 0   Download

In this study, the alkaline solutions (NaOH) with concentrations from 1M to 18M, red mud (RM) and silica fume (SF) were used as reactors in geopolymer reactions. RM contains 7.40% SiO2 and 13.65% Al2 O3 and SF has 94.50% SiO2 , but only the active oxides can participate in the geopolymer reactions. The activity of the oxides was investigated by determining the compressive strength of the samples under different curing conditions.

8p caygaocaolon1 13-11-2019 18 2   Download

In this study, an experimental assessment of thermal shock performance of a monolithic alpha phase SiC tube was conducted by quenching the material from high temperature (up to 1200ºC) into room temperature water. Post-quenching assessment was carried out by a Scanning Electron Microscopy (SEM) image analysis to characterize fractures in the material. This paper assesses the effects of pre-existing pores on SiC cladding brittle fracture and crack development/propagation during the reflood phase.

10p minhxaminhyeu5 30-06-2019 23 1   Download

This paper presents a Monte-Carlo code to simulate the time sequences of the β-decay following implantation of a continuous radioactive ion beam into a segmented silicon detector. We extended our simulation to the β-delayed neutron process. An analysis procedure, which has been developed to obtain simultaneously the β-decay half-life and the β-delayed multi-neutron emission probability, was verified by the simulation data.

11p letanhien2309 19-02-2019 24 0   Download

It is commonly believed that furniture spring systems are far more durable and friendly to use than foam systems. The aim of this research project was to design and realise models of individual auxetic compression springs and determine their resistance to cyclic as well as prolonged static loads.

8p vimb123 11-01-2019 18 1   Download

In this paper, we design and simulate a micro-suspension based scanning probe for nanolithography using electrostatic actuation. The probe consists of a square plate with a pyramid tip at the center that is suspended by four beams. The entire probe is assumed to be made of single silicon and operated in air medium. Operation characteristics are analyzed by finite element method.

10p cumeo4000 01-08-2018 26 0   Download